But the Government said the law would not include religious exemptions.

I will definitely be looking for religious exemptions for places like Catholic Care to be able to continue to provide the adoption services that they provide with the ability to follow their religious beliefs.

"There is a difference of view amongst faith communities, but we are very determined that this position reflects, not just the position that we took to the election in 2014, but the widely supported view by most Victorians," he said.

The law would bring Victoria into line with three other states, Mr Foley said.

"Currently Western Australia, Tasmania and New South Wales have forms of this legislation in place," he said.

"It's about time Victoria caught up with those states, indeed went past them.

"This was initially a recommendation in 2007 from the Law Reform Commission, it's about time we remove this discrimination against the thousands of people who are operating in a legal haze."

Victorian Opposition Leader Matthew Guy would not comment on how the Opposition would vote on the legislation.

"I'll wait and see what's in the bill on same-sex marriage, I haven't seen any bill," he said.

Democratic Labour Party Upper House MP Rachel Carling-Jenkins said she would not support the bill because she was "not convinced" it was in the best interests of the child.

"I don't believe in same-sex adoption. I will definitely be looking for religious exemptions for places like Catholic Care to be able to continue to provide the adoption services that they provide with the ability to follow their religious beliefs," she said.